<!DOCTYPE html>
<html >
<head>
    <meta charset="utf-8" />
    <title></title>
    <style type="text/css">
        #p1{text-transform:uppercase; } 
        #p2{text-transform:lowercase;} 
        #p3{text-transform:capitalize;}
    </style>
</head>
<body>
    <p id="p1">rome was't built in a day. </p >
    <p id="p2">rome was't built in a day. </p > 
    <p id="p3">rome was't built in a day. </p >
</body>
</html>